Struct b2RayCastCallback 

pub struct b2RayCastCallback { /* private fields */ }

Callback class for ray casts. See b2World::RayCast

Implementations

impl b2RayCastCallback

pub unsafe fn ReportFixture( self: Pin<&mut b2RayCastCallback>, fixture: *mut b2Fixture, point: &b2Vec2, normal: &b2Vec2, fraction: f32, ) -> f32

Called for each fixture found in the query. You control how the ray cast proceeds by returning a float: return -1: ignore this fixture and continue return 0: terminate the ray cast return fraction: clip the ray to this point return 1: don’t clip the ray and continue @param fixture the fixture hit by the ray @param point the point of initial intersection @param normal the normal vector at the point of intersection @param fraction the fraction along the ray at the point of intersection @return -1 to filter, 0 to terminate, fraction to clip the ray for closest hit, 1 to continue

pub unsafe fn ReportParticle( self: Pin<&mut b2RayCastCallback>, particleSystem: *const b2ParticleSystem, index: c_int, point: &b2Vec2, normal: &b2Vec2, fraction: f32, ) -> f32

Called for each particle found in the query. You control how the ray cast proceeds by returning a float: return <=0: ignore the remaining particles in this particle system return fraction: ignore particles that are ‘fraction’ percent farther along the line from ‘point1’ to ‘point2’. Note that ‘point1’ and ‘point2’ are parameters to b2World::RayCast. @param particleSystem the particle system containing the particle @param index the index of the particle in particleSystem @param point the point of intersection bt the ray and the particle @param normal the normal vector at the point of intersection @param fraction percent (0.0~1.0) from ‘point0’ to ‘point1’ along the ray. Note that ‘point1’ and ‘point2’ are parameters to b2World::RayCast. @return <=0 to ignore rest of particle system, fraction to ignore particles that are farther away.

pub unsafe fn ShouldQueryParticleSystem( self: Pin<&mut b2RayCastCallback>, particleSystem: *const b2ParticleSystem, ) -> bool

Cull an entire particle system from b2World::RayCast. Ignored in b2ParticleSystem::RayCast. @return true if you want to include particleSystem in the RayCast, or false to cull particleSystem from the RayCast.

Trait Implementations

impl AsRef<b2RayCastCallback> for b2RayCastCallbackWrapper

fn as_ref(&self) -> &b2RayCastCallback

Converts this type into a shared reference of the (usually inferred) input type.

impl Drop for b2RayCastCallback

fn drop(self: &mut b2RayCastCallback)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl ExternType for b2RayCastCallback

type Kind = Opaque

Either cxx::kind::Opaque or cxx::kind::Trivial.

type Id

A type-level representation of the type’s C++ namespace and type name.

impl MakeCppStorage for b2RayCastCallback

unsafe fn allocate_uninitialized_cpp_storage() -> *mut b2RayCastCallback

Allocates heap space for this type in C++ and return a pointer to that space, but do not initialize that space (i.e. do not yet call a constructor).

unsafe fn free_uninitialized_cpp_storage(arg0: *mut b2RayCastCallback)

Frees a C++ allocation which has not yet had a constructor called.

impl SharedPtrTarget for b2RayCastCallback

impl UniquePtrTarget for b2RayCastCallback

impl WeakPtrTarget for b2RayCastCallback